Aquarium thermometer



FIG. 1 is a top plan view of an aquarium thermometer showing our newdesign;

FIG. 2 is a front elevational view;

FIG. 3 is a left side elevational view, the right side being a mirrorimage thereof;

FIG. 4 is a rear elevational view; and

FIG. 5 is a bottom plan view thereof.

The ornamental design for an aquarium thermometer, substantially asshown and described.